The Medical Review Board of the Federal Motor Carrier Safety Administration has recommended that CDL holders with a body mass index of 30 or higher be referred for sleep apnea testing. There is no timetable for action on this recommendation.

Sleep apnea is a serious disorder that interrupts a person’s breathing during sleep.  It can cause sleeplessness, fatigue, excessive snoring, acid reflux and other health problems, and can aggravate any existing heart or lung trouble. Certain physical features, such as excessive weight, are common to people with sleep apnea, although people who aren’t obese can suffer it as well.